diff --git a/src/sf_func.c b/src/sf_func.c
index 8ef0e7c..5631419 100644
--- a/src/sf_func.c
+++ b/src/sf_func.c
@@ -19,7 +19,7 @@
 #include "sf_global.h"
 #include "sf_func.h"
 
-int sf_parse_server_info(const char* pServerStr, SFServerInfo* pServerInfo,
+int sf_parse_server_info(const char *pServerStr, ConnectionInfo *pServerInfo,
                          const int default_port)
 {
     char *parts[2];
@@ -67,12 +67,13 @@ int sf_parse_server_info(const char* pServerStr, SFServerInfo* pServerInfo,
             __LINE__, pServerStr, parts[0]);
         return EINVAL;
     }
-    
+
+    pServerInfo->socket_domain = AF_INET;
     return 0;
 }
 
 int sf_load_server_info(IniContext *pIniContext, const char *filename,
-        const char *item_name, SFServerInfo *pServerInfo,
+        const char *item_name, ConnectionInfo *pServerInfo,
         const int default_port)
 {
     char *pServerStr;
@@ -113,4 +114,3 @@ int sf_connect_to_server(const char *ip_addr, const int port, int *sock)
 
     return 0;
 }
-
diff --git a/src/sf_func.h b/src/sf_func.h
index 96eb20b..2dfb7bc 100644
--- a/src/sf_func.h
+++ b/src/sf_func.h
@@ -11,10 +11,10 @@ extern "C" {
 #endif
 
 int sf_load_server_info(IniContext *pIniContext, const char *filename,
-        const char *item_name, SFServerInfo *pServerInfo,
+        const char *item_name, ConnectionInfo *pServerInfo,
         const int default_port);
 
-int sf_parse_server_info(const char* pServerStr, SFServerInfo* pServerInfo,
+int sf_parse_server_info(const char *pServerStr, ConnectionInfo *pServerInfo,
                          const int default_port);
 
 int sf_connect_to_server(const char *ip_addr, const int port, int *sock);
@@ -24,4 +24,3 @@ int sf_connect_to_server(const char *ip_addr, const int port, int *sock);
 #endif
 
 #endif
-
diff --git a/src/sf_nio.c b/src/sf_nio.c
index 6a96b37..309b766 100644
--- a/src/sf_nio.c
+++ b/src/sf_nio.c
@@ -388,7 +388,6 @@ int sf_client_sock_write(int sock, short event, void *arg)
 
         bytes = write(sock, pTask->data + pTask->offset,
                 pTask->length - pTask->offset);
-        //printf("%08X sended %d bytes\n", (int)pTask, bytes);
         if (bytes < 0) {
             if (errno == EAGAIN || errno == EWOULDBLOCK)
             {
diff --git a/src/sf_types.h b/src/sf_types.h
index ce6210a..33be6e0 100644
--- a/src/sf_types.h
+++ b/src/sf_types.h
@@ -17,10 +17,5 @@ typedef int (*sf_set_body_length_callback)(struct fast_task_info *pTask);
 typedef int (*sf_deal_task_func)(struct fast_task_info *pTask);
 typedef int (*sf_recv_timeout_callback)(struct fast_task_info *pTask);
 
-typedef struct {
-    char ip_addr[IP_ADDRESS_SIZE];
-    int port;
-} SFServerInfo;
-
 #endif